I am not very clear though. Which parts do I use where?
I think I should use birch ply (in several layers and cross grain) to strengthen the LG Block.
Then further ply on the engine box that extends all the way upto the wing tube. In an impact (God forbid), this part will take and transfer the force. If I use CF on it and it shatters, it will be difficult to repair.
Wing tube is cardboard, so I should fibreglass that.

From there on I am blank

What should I use to sheet the inside of the fuse behind the wing- balsa or CF? I am thinking balsa because that much CF will be just too

What would be typically size for CF stringers and CF sheeting?

Ameyam